This record as markdown: /tools/hybridlabor-api-aos/test-animation.md
What test-animation does on Aos
AI agents invoke test-animation to trigger actions in Aos. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why test-animation is rated High
The tool executes operations within After Effects to test animation functionality. This falls under Execute as it runs/triggers external operations in the application. The description is vague, lowering confidence, but 'test' implies running/triggering something rather than just reading or writing data. Severity is medium as misuse could alter project state or trigger unintended renders.
From the tool's definition 'Test animation functionality in After Effects' — triggers execution of animation testing within the After Effects environment via ExtendScript
Attacks that exploit this kind of access
The rule that runs test-animation safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Aos, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For test-animation, this is the rule to start with:
test-animation stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Aos, apply this rule, and every test-animation call is checked against it from then on.
Questions about test-animation
Test animation functionality in After Effects. It is categorised as a Execute tool in the Aos MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Aos MCP server in PolicyLayer and add a rule for test-animation: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Aos. Nothing to install.
test-animation is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the test-animation rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for test-animation. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
test-animation is provided by the Aos MCP server (@hybridlabor-api/aos). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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